9 Measuring, detecting and monitoring instruments, indicators and controllers, of temperature, pressure, liquid level, velocity, water condition and light, namely, thermometers not for medical purposes, level indicators, motion detectors; optical and electrical sensors and detectors for temperature, pressure, liquid level, velocity, water condition and light; electric testing apparatus for liquids, namely, of temperature, pressure, liquid level, velocity and water condition; safety sensors in the nature of carbon monoxide detectors, smoke detectors, temperature sensors, pressure sensors, safety restraints other than for vehicle seats and sports equipment; safety contact plugs, electric sensors, digital signal processors, transmitters of electronic signals, emergency signal transmitters; safety and signaling devices and equipment for checking of container contents, namely, electric sensors, digital signal processors, transmitters of electronic signals, emergency signal transmitters; electrical controls, namely, electrical controllers, electrical controlling devices, electric sensors, electrical controls for pipe systems; electric controls for plumbing fittings plugs, coupling assemblies, valves and motors